The Laguerre polynomial of degree n and parameter a satisfy the following recurrence relation:
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These polynomials are orthogonal for the scalar product
| ⟨ f,g⟩= | ∫ | 
 | f(x)g(x)xae−x dx. | 
The laguerre command finds the Laguerre polynomials.
| laguerre(2) | 
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| laguerre(2,y) | 
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| laguerre(2,y,b) | 
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